Milky Milky Milk — Miley Cyrus & Her Dead Petz (2015)

Miley Cyrus's psychedelic free album features cover art so garish and random that critics gave it a 1.8/10 in a 2015 design poll, with 60% of respondents calling it 'intentionally bad.' The use of neon colors and distorted faces violates 80% of standard cover design principles, yet its subversive intent prevents it from claiming the worst spot.